Psychometric evaluation of health related quality of life among rural-to-urban migrants in China

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Abstract

Objectives: Our study discusses health related quality of life (HRQOL) as measured by 36-item Short Form (SF-36) for rural-to-urban migrants in China, and assesses the validity and reliability of the SF-36 for this group. Methods: In 2012,765 rural-to-urban migrant respondents chosen by probability and the non-probability sampling methods have completed the survey in Wuhan, Mid-China. The reliability of SF-36 is analyzed by Cronbach's alpha (α) coefficient, split-half coefficient, theta (Θ) and omega (ω) coefficient, the validity is calculated by confirmatory factor analysis (CFA) and known-group methods. Result: Split-half reliability coefficient is 0.717. Cronbach's alpha coefficient is 0.776. Theta and omega coefficient are 0.862 and 0.903 respectively. CFA statistical analysis results are shown as follows: GFI = 0.926, Chi-Square/Df = 2.059, RMSEA = 0.037, CFI = 0.939. Physical and mental component summary (PCS/MCS) scores are tabulated by known-group variables and show a statistical significance. Conclusion: In general, SF-36 is a reliable and valid instrument for measuring HRQOL of rural-to-urban migrants in China. Furthermore, Chinese migrants have lived and worked in a hard environment, their salaries are much lower than that of the counterparts, HRQOL of this group is also a little lower and deserves much attention from society.

Figures

  • Table 1 Descriptive statistics for SF-36 items and summary scores (N = 765)
  • Table 2 Overall and subgroup Cronbach’s alpha coefficients of SF-36
  • Table 3 Comparison of PCS-36 and MCS-36 scores with subgroup
  • Fig. 1 CFA analysis for the construct validity of SF-36 items. Note: ***, p < 0. 001; **, p < 0. 01; *, p < 0. 05
  • Fig. 2 Eight latent variables of SF-36 relationship metric. Note: ***, p < 0. 001; **, p < 0. 01; *, p < 0. 05

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APA

Wang, P., Chen, C., Yang, R., & Wu, Y. (2015). Psychometric evaluation of health related quality of life among rural-to-urban migrants in China. Health and Quality of Life Outcomes, 13(1). https://doi.org/10.1186/s12955-015-0350-1

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